How did old blasting machines work?

Its mechanism consisted of a T-handle that was pushed down; the lower end of the handle was a rack that drove a pinion, which in turn drove a high-voltage magneto, which generated the high voltage that is required to detonate the blasting cap.

When was the plunger detonator invented?

1820 – American scientist Robert Hare, worked on electrical initiation of flammable gases. Hare also developed a “plunger” type galvanic machine for producing electrical charges for this purpose. 1822 – Hare used a hotwire embedded in a pyrotechnic mixture to initiate a blackpowder charge.

Why was the blasting cap invented?

The first blasting cap or detonator was demonstrated in 1745 when British physician and apothecary William Watson showed that the electric spark of a friction machine could ignite black powder, by way of igniting a flammable substance mixed in with the black powder.

How did dynamite plungers work?

Dynamite plungers are basically en electrical generator called a magneto. When it is pushed down it supplies a voltage to the blasting cap stuck into a stick of dynamite. The voltage detonates the blasting cap which, it turn, detonated the dynamite. In general, black powder, also called gunpowder.

What was the purpose of the shot blasting machine?

The might be the basis of his shot blasting machine invention. On October 18.1870, Tilghman filed a patent, titled “Improvement in cutting and engraving stone, metal, glass, etc”, in the US (US paten 108,408), detailing many unique applications of the technology, such as sharpening files, carving bottles, cleaning boilers or turning.

What was the first commercially successful blasting agent?

1933 Roller cone bits introduced in oil fields. 1935 U.S. Geological Survey develops blast vibration machine — cost $25,000. 1935 duPont introduces first commercially successful non-nitroglycerin ammonium nitrate (AN) blasting agent.

When was the first magnetic blasting machine made?

The first satisfactory magnetic induction blasting machine was constructed in 1878 by Henry Julius Smith of Mountain View, New Jersey.

How long has Clemco been making blast machines?

Since the 1940s, Clemco has been designing and manufacturing abrasive air-powered blast machines for numerous industries in the United States and around the globe. A lot has changed after more than 75 years in business, and Clemco has changed with the times.